3-V to 5.5-V Multichannel RS-232 Line Driver

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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
SLLS826 – AUGUST 2007
FEATURES
•
•
•
•
•
•
•
•
•
•
RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V VCC Supply
Operates up to 1000 kbit/s
Five Drivers and Three Receivers
Auto-Powerdown Plus Feature Enables
Flexible Power-Down Mode
Low Standby Current . . . 1 μA Typical
External Capacitors . . . 4 × 0.1 μF
Accept 5-V Logic Input With 3.3-V Supply
Always-Active Noninverting Receiver Output
(ROUT1B)
ESD Protection for RS-232 Interface Pins
– ±15-kV Human-Body Model (HBM)
– ±8-kV IEC61000-4-2, Contact Discharge
– ±15-kV IEC61000-4-2, Air-Gap Discharge
DB, DW, OR PW PACKAGE
(TOP VIEW)
C2 +
GND
C2−
V−
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
DOUT5
FORCEON
FORCEOFF
Battery-Powered Systems
PDAs
Notebooks
Subnotebooks
Laptops
Palmtop PCs
Hand-Held Equipment
Modems
Printers
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
C1+
V+
VCC
C1−
DIN1
DIN2
DIN3
ROUT1
ROUT2
DIN4
ROUT3
DIN5
ROUT1B
INVALID
RHB PACKAGE
(TOP VIEW)
APPLICATIONS
•
•
•
•
•
•
•
•
•
1
V−
C2–
GND
C2+
C1+
V+
VCC
NC
•
32 31 30 29 28 27 26 25
DOUT1
DOUT2
DOUT3
RIN1
RIN2
DOUT4
RIN3
NC
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
C1–
DIN1
DIN2
DIN3
ROUT1
ROUT2
DIN4
ROUT3
DOUT5
FORCEON
FORCEOFF
INVALID
NC
ROUT1B
DIN5
NC
9 10 11 12 13 14 15 16
DESCRIPTION/ORDERING INFORMATION
The TRSF3238E consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV
ESD (HBM) protection on the driver output (DOUT) and receiver input (RIN) terminals. The device meets the
requirements of TIA/EIA-232-F and provides the electrical interface between notebook and subnotebook
computer applications. The charge pump and four small external capacitors allow operation from a single 3-V to
5.5-V supply. In addition, the device includes an always-active noninverting output (ROUT1B), which allows
applications using the ring indicator to transmit data while the device is powered down. The TRSF3238E
operates at data signaling rates up to 1000 kbit/s.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated
TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
Flexible control options for power management are featured when the serial port and driver inputs are inactive.
The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high. During this mode
of operation, if the device does not sense valid signal transitions on all receiver and driver inputs for
approximately 30 s, the built-in charge pump and drivers are powered down, reducing the supply current to
1 μA. By disconnecting the serial port or placing the peripheral drivers off, auto-powerdown plus occurs if there
is no activity in the logic levels for the driver inputs. Auto-powerdown plus can be disabled when FORCEON and
FORCEOFF are high. With auto-powerdown plus enabled, the device activates automatically when a valid signal
is applied to any receiver or driver input. INVALID is high (valid data) if any receiver input voltage is greater than
2.7 V or less than –2.7 V, or has been between –0.3 V and 0.3 V for less than 30 μs. INVALID is low (invalid
data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 μs. Refer to Figure 5 for
receiver input levels.
ORDERING INFORMATION
PACKAGE (1) (2)
TA
QFN – RHB
SOIC – DW
0°C to 70°C
SSOP – DB
TSSOP – PW
QFN – RHB
SOIC – DW
–40°C to 85°C
SSOP – DB
TSSOP – PW
(1)
(2)
2
ORDERABLE PART NUMBER
Reel of 2000
TRSF3238ECRHBR
Tube of 50
TRSF3238ECDW
Reel of 2000
TRSF3238ECDWR
Tube of 50
TRSF3238ECDB
Reel of 2000
TRSF3238ECDBR
Tube of 50
TRSF3238ECPW
Reel of 2000
TRSF3238ECPWR
Reel of 2000
TRSF3238EIRHBR
Tube of 50
TRSF3238EIDW
Reel of 2000
TRSF3238EIDWR
Tube of 50
TRSF3238EIDB
Reel of 2000
TRSF3238EIDBR
Tube of 50
TRSF3238EIPW
Reel of 2000
TRSF3238EIPWR
TOP-SIDE MARKING
RS38EC
TRS3238EC
TRS3238EC
RS38EC
RS38EI
TRS3238EI
TRS3238EI
RS38EI
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
FUNCTION TABLES
abc
Each Driver (1)
INPUTS
DIN
(1)
FORCEON
FORCEOFF
TIME ELAPSED SINCE LAST
RIN OR DIN TRANSITION
OUTPUT
DOUT
DRIVER STATUS
X
X
L
X
Z
Powered off
L
H
H
X
H
H
H
H
X
L
Normal operation with
auto-powerdown plus disabled
L
L
H
<30 s
H
H
L
H
<30 s
L
L
L
H
>30 s
Z
H
L
H
>30 s
Z
Normal operation with
auto-powerdown plus enabled
Powered off by
auto-powerdown plus feature
H = high level, L = low level, X = irrelevant, Z = high impedance
Each Receiver (1)
INPUTS
OUTPUTS
RIN1
RIN2 AND
RIN3
FORCEOFF
TIME ELAPSED SINCE LAST
RIN OR DIN TRANSITION
ROUT1B
ROUT2 AND
ROUT3
RECEIVER STATUS
Powered off while
ROUT1B is active
L
X
L
X
L
Z
H
X
L
X
H
Z
L
L
H
<30 s
L
H
L
H
H
<30 s
L
L
H
L
H
<30 s
H
H
H
H
H
<30 s
H
L
Open
Open
H
<30 s
L
H
(1)
Normal operation with
auto-powerdown plus
disabled/enabled
H = high level, L = low level, X = irrelevant, Z = high impedance (off), Open = input disconnected or connected driver off
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
LOGIC DIAGRAM (POSITIVE LOGIC)
DIN1
DIN2
DIN3
DIN4
DIN5
FORCEOFF
FORCEON
ROUT1B
ROUT1
ROUT2
ROUT3
4
24
5
23
6
22
7
19
10
17
12
DOUT1
DOUT2
DOUT3
DOUT4
DOUT5
14
13
Auto-Powerdown Plus
15
INVALID
16
21
8
20
9
18
11
RIN1
RIN2
RIN3
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
Absolute Maximum Ratings
(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
VCC
Supply voltage range (2)
–0.3
6
V
V+
Positive-output supply voltage range (2)
–0.3
7
V
0.3
–7
V
13
V
V–
Negative-output supply voltage range
V+ – V–
Supply voltage difference (2)
VI
Input voltage range
VO
Output voltage range
θJA
(2)
Driver (FORCEOFF, FORCEON)
–0.3
6
Receiver
–25
25
Driver
Receiver (INVALID)
Package thermal impedance (3) (4)
–13.2
13.2
–0.3
VCC + 0.3
DB package
62
DW package
46
PW package
62
RHB package
TJ
Operating virtual junction temperature
Tstg
Storage temperature range
(1)
(2)
(3)
(4)
UNIT
V
V
°C/W
TBD
–65
150
°C
150
°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltages are with respect to network GND.
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
The package thermal impedance is calculated in accordance with JESD 51-7.
Recommended Operating Conditions (1)
See Figure 6
MIN NOM
VCC = 3.3 V
Supply voltage
VCC = 5 V
VIH
Driver and control high-level input voltage
DIN, FORCEOFF,
FORCEON
VIL
Driver and control low-level input voltage
DIN, FORCEOFF, FORCEON
VI
Receiver input voltage
TA
Operating free-air temperature
(1)
3.3
3.6
4.5
5
5.5
VCC = 3.3 V
VCC = 5 V
2
5.5
2.4
5.5
UNIT
V
V
0
0.8
V
–25
25
V
0
70
–40
85
TRSF3238EC
TRSF3238EI
MAX
3
°C
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
Electrical Characteristics (1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)
PARAMETER
II
ICC
(1)
(2)
Input leakage current
Supply current
(TA = 25°C)
TEST CONDITIONS
FORCEOFF, FORCEON
MIN
TYP (2)
MAX
±0.01
±1
μA
0.5
2
mA
Auto-powerdown plus
disabled
No load,
FORCEOFF and FORCEON at VCC,
VCC at 3.3 V or 5 V
Powered off
No load, FORCEOFF at GND
1
10
Auto-powerdown plus
enabled
No load, FORCEOFF at VCC,
FORCEON at GND,
All RIN are open or grounded
1
10
UNIT
μA
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
DRIVER SECTION
xxx
Electrical Characteristics (1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)
PARAMETER
MIN TYP (2) MAX
TEST CONDITIONS
VOH
High-level output voltage
All DOUT at RL = 3 kΩ to GND
5
5.4
VOL
Low-level output voltage
All DOUT at RL = 3 kΩ to GND
–5
–5.4
IIH
High-level input current
VI = VCC
IIL
Low-level input current
VI at GND
Short-circuit output current (3)
VO = 0 V
ro
Output resistance
VCC, V+, and V– = 0 V,
IOZ
Output leakage current
FORCEOFF = GND
(1)
(2)
(3)
V
V
±0.01
IOS
±1
μA
μA
±0.01
±1
VCC = 3.6 V
±35
±60
VCC = 5.5 V
±40 ±100
VO = ±2 V
300
UNIT
mA
Ω
10M
VO = ±12 V,
VCC = 3 V to 3.6 V
±25
VO = ±10 V,
VCC = 4.5 V to 5.5 V
±25
μA
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one
output should be shorted at a time.
Switching Characteristics (1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)
PARAMETER
MIN TYP (2) MAX
TEST CONDITIONS
CL = 1000 pF
Maximum data rate
(see Figure 1)
RL = 3 kΩ,
One DOUT switching
CL = 250 pF,
VCC = 3 V to 4.5 V
1000
CL = 1000 pF,
VCC = 4.5 V to 5.5 V
1000
tsk(p)
Pulse skew (3)
CL = 150 pF to 2500 pF,
RL = 3 kΩ to 7 kΩ,
See Figure 2
SR(tr)
Slew rate,
transition region
(see Figure 1)
CL = 150 pF to 1000 pF,
RL = 3 kΩ to 7 kΩ,
VCC = 3.3 V
(1)
(2)
(3)
UNIT
250
kbit/s
25
18
ns
150
V/μs
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
Pulse skew is defined as |tPLH – tPHL| of each channel of the same device.
ESD Protection
PARAMETER
DOUT
6
TEST CONDITIONS
TYP
HBM
±15
IEC 61000-4-2, Air-Gap Discharge
±15
IEC 61000-4-2, Contact Discharge
±8
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UNIT
kV
TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
RECEIVER SECTION
xxx
Electrical Characteristics (1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)
PARAMETER
VOH
High-level output voltage
IOH = –1 mA
VOL
Low-level output voltage
IOL = 1.6 mA
VCC – 0.6
VCC – 0.1
MAX
1.5
2.4
VCC = 5 V
1.8
2.4
VIT–
Negative-going input threshold voltage
Vhys
Input hysteresis (VIT+ – VIT–)
IOZ
Output leakage current (except ROUT1B)
FORCEOFF = 0 V
ri
Input resistance
VI = ±3 V to ±25 V
VCC = 3.3 V
0.6
1.2
VCC = 5 V
0.8
1.5
UNIT
V
VCC = 3.3 V
Positive-going input threshold voltage
(2)
TYP (2)
0.4
VIT+
(1)
MIN
TEST CONDITIONS
V
V
V
0.3
V
±0.05
±10
μA
5
7
kΩ
3
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
Switching Characteristics (1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TYP (2)
UNIT
tPLH
Propagation delay time, low- to high-level output
CL = 150 pF, See Figure 3
150
ns
tPHL
Propagation delay time, high- to low-level output
CL = 150 pF, See Figure 3
150
ns
ten
Output enable time
CL = 150 pF, RL = 3 kΩ, See Figure 4
200
ns
tdis
Output disable time
CL = 150 pF, RL = 3 kΩ, See Figure 4
200
ns
tsk(p)
Pulse skew (3)
See Figure 3
50
ns
(1)
(2)
(3)
Testing supply conditions are C1–C4 = 0.1 μF at VCC = 3.3 V ± 0.15 V; C1–C4 = 0.22 μF at VCC = 3.3 V ± 0.3 V; and C1 = 0.047 μF
and C2–C4 = 0.33 μF at VCC = 5 V ± 0.5 V.
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
Pulse skew is defined as |tPLH – tPHL| of each channel of the same device.
ESD Protection
PARAMETER
RIN
TEST CONDITIONS
TYP
HBM
±15
IEC 61000-4-2, Air-Gap Discharge
±15
IEC 61000-4-2, Contact Discharge
±8
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UNIT
kV
7
TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
AUTO-POWERDOWN PLUS SECTION
xxx
Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5)
PARAMETER
TEST CONDITIONS
MIN
VT+(valid)
Receiver input threshold
for INVALID high-level output voltage
FORCEON = GND, FORCEOFF = VCC
VT–(valid)
Receiver input threshold
for INVALID high-level output voltage
FORCEON = GND, FORCEOFF = VCC
–2.7
VT(invalid)
Receiver input threshold
for INVALID low-level output voltage
FORCEON = GND, FORCEOFF = VCC
–0.3
VOH
INVALID high-level output voltage
IOH = –1 mA, FORCEON = GND,
FORCEOFF = VCC
VOL
INVALID low-level output voltage
IOL = 1.6 mA, FORCEON = GND,
FORCEOFF = VCC
MAX
2.7
UNIT
V
V
0.3
VCC – 0.6
V
V
0.4
V
Switching Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5)
PARAMETER
TYP (1)
MAX
UNIT
tvalid
Propagation delay time, low- to high-level output
0.1
μs
tinvalid
Propagation delay time, high- to low-level output
50
μs
ten
Supply enable time
25
tdis
Receiver or driver edge to auto-powerdown plus
(1)
8
MIN
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
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15
30
μs
60
s
TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
PARAMETER MEASUREMENT INFORMATION
3V
Generator
(see Note B)
Input
RS-232
Output
50 Ω
RL
tTHL
CL
(see Note A)
3V
FORCEOFF
TEST CIRCUIT
0V
3V
3V
Output
SR(tr) +
tTLH
−3 V
−3 V
6V
t THL or tTLH
VOH
VOL
VOLTAGE WAVEFORMS
A.
CL includes probe and jig capacitance.
B.
The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns,
tf ≤ 10 ns.
Figure 1. Driver Slew Rate
3V
Generator
(see Note B)
RS-232
Output
50 Ω
RL
Input
1.5 V
1.5 V
0V
CL
(see Note A)
tPHL
tPLH
VOH
3V
FORCEOFF
50%
50%
Output
VOL
TEST CIRCUIT
VOLTAGE WAVEFORMS
A.
CL includes probe and jig capacitance.
B.
The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns,
tf ≤ 10 ns.
Figure 2. Driver Pulse Skew
3 V or 0 V
FORCEON
3V
Input
1.5 V
1.5 V
−3 V
Output
Generator
(see Note B)
tPHL
50 Ω
3V
FORCEOFF
tPLH
CL
(see Note A)
VOH
50%
Output
50%
VOL
TEST CIRCUIT
VOLTAGE WAVEFORMS
A.
CL includes probe and jig capacitance.
B.
The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 3. Receiver Propagation Delay Times
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
PARAMETER MEASUREMENT INFORMATION (continued)
3V
Input
VCC
3 V or 0 V
FORCEON
1.5 V
0V
tPHZ
(S1 at GND)
RL
3 V or 0 V
1.5 V
GND
S1
VOH
Output
50%
Output
CL
(see Note A)
FORCEOFF
Generator
(see Note B)
0.3 V
tPLZ
(S1 at VCC)
50 Ω
tPZL
(S1 at VCC)
0.3 V
Output
50%
VOL
TEST CIRCUIT
VOLTAGE WAVEFORMS
A.
CL includes probe and jig capacitance.
B.
The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
C.
tPLZ and tPHZ are the same as tdis.
D.
tPZL and tPZH are the same as ten.
Figure 4. Receiver Enable and Disable Times
10
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TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
PARAMETER MEASUREMENT INFORMATION (continued)
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
Valid RS-232 Level, INVALID High
ROUT
Generator
(see Note B)
2.7 V
50 Ω
Indeterminate
0.3 V
0V
−0.3 V
Indeterminate
AutoPowerdown
Plus
INVALID
−2.7 V
CL = 30 pF
(see Note A)
Valid RS-232 Level, INVALID High
†
FORCEOFF
FORCEON
If Signal Remains Within This Region
For More Than 30 µs, INVALID Is Low†
DIN
DOUT
Auto-powerdown plus disables drivers and reduces
supply current to 1 µA.
TEST CIRCUIT
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following
characteristics: PRR = 5 kbit/s, ZO = 50 Ω, 50%
duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Receiver
Input
3V
2.7 V
0V
0V
−2.7 V
−3 V
tinvalid
tvalid
INVALID
Output
Driver
Input
50%
VCC
50%
0V
3 V to 5 V
50%
50%
0V
≈5.5 V
Driver
Output
≈ −5.5 V
tdis
ten
tdis
ten
V+
Supply
Voltages
V+
V+ −0.3 V
V− +0.3 V
V−
V−
Voltage Waveforms and Timing Diagrams
Figure 5. INVALID Propagation-Delay Times and Supply-Enabling Time
Submit Documentation Feedback
11
TRSF3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD (HBM) PROTECTION
www.ti.com
SLLS826 – AUGUST 2007
APPLICATION INFORMATION
CBYPASS = 0.1 µF
+
−
1
2
+
C2
27
+
GND
−
4
+
V+
28
−
3
−
C1+
C2+
C2−
VCC
V−
C1−
C4
DOUT1
DOUT2
DOUT3
RIN1
C3†
+
−
26
C1
25
5
24
6
23
7
22
8
21
9
20
DIN1
DIN2
DIN3
ROUT1
RS-232 Port
RIN2
ROUT2
Logic I/Os
5 kΩ
DOUT4
RIN3
10
19
11
18
DIN4
ROUT3
5 kΩ
DOUT5
12
17
16
DIN5
ROUT1B
5 kΩ
FORCEON
FORCEOFF
13
14
AutoPowerdown
Plus
15
INVALID
VCC vs CAPACITOR VALUES
VCC
†
C3 can be connected to VCC or GND.
NOTES: A. Resistor values shown are nominal.
B. Nonpolarized ceramic capacitors are acceptable. If polarized tantalum
or electrolytic capacitors are used, they should be connected as
shown.
3.3 V ± 0.15 V
3.3 V ± 0.3 V
5 V ± 0.5 V
3 V to 5.5 V
Figure 6. Typical Operating Circuit and Capacitor Values
12
Submit Documentation Feedback
C1
0.1 µF
0.22 µF
0.047 µF
0.22 µF
C2, C3, and C4
0.1 µF
0.22 µF
0.33 µF
1 µF
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2014
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
TRSF3238ECDBR
ACTIVE
SSOP
DB
28
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
0 to 70
TRSF3238EC
TRSF3238EIDBR
ACTIVE
SSOP
DB
28
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
TRSF3238EI
TRSF3238EIDWR
ACTIVE
SOIC
DW
28
1000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
TRSF3238EI
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
Addendum-Page 1
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2014
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
12-Aug-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
TRSF3238ECDBR
SSOP
TRSF3238EIDBR
TRSF3238EIDWR
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
10.5
2.5
12.0
16.0
Q1
DB
28
2000
330.0
16.4
SSOP
DB
28
2000
330.0
16.4
8.2
10.5
2.5
12.0
16.0
Q1
SOIC
DW
28
1000
330.0
32.4
11.35
18.67
3.1
16.0
32.0
Q1
Pack Materials-Page 1
8.2
B0
(mm)
PACKAGE MATERIALS INFORMATION
www.ti.com
12-Aug-2013
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TRSF3238ECDBR
SSOP
DB
28
2000
367.0
367.0
38.0
TRSF3238EIDBR
SSOP
DB
28
2000
367.0
367.0
38.0
TRSF3238EIDWR
SOIC
DW
28
1000
367.0
367.0
55.0
Pack Materials-Page 2
MECHANICAL DATA
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001
DB (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
28 PINS SHOWN
0,38
0,22
0,65
28
0,15 M
15
0,25
0,09
8,20
7,40
5,60
5,00
Gage Plane
1
14
0,25
A
0°–ā8°
0,95
0,55
Seating Plane
2,00 MAX
0,10
0,05 MIN
PINS **
14
16
20
24
28
30
38
A MAX
6,50
6,50
7,50
8,50
10,50
10,50
12,90
A MIN
5,90
5,90
6,90
7,90
9,90
9,90
12,30
DIM
4040065 /E 12/01
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-150
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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